Native Range: Canada, Northwestern US     

Hardiness Zone: USDA Zone 4a: to -34.4 °C

Height: 1,0-1,2m

Soil: Prefers rich, humusy, well drained, slightly acid  to neutral soil.

pH:

Moisture: Moist

Light: Full sun to part shade.

Flowering Period: July

Garden locations: Woodland gardens and moist  borders. Native plant gardens.

Price: 15 €